def connect(self, eventContext, deviceId, hostname, creds, namespace="root\\cimv2"):
self._deviceId = deviceId
library.com_init_ctx(byref(self.ctx), eventContext)
cred = library.cli_credentials_init(self.ctx)
library.cli_credentials_set_conf(cred)
library.cli_credentials_parse_string(cred, creds, CRED_SPECIFIED)
library.dcom_client_init(self.ctx, cred)
def inner(driver):
flags = uint32_t()
flags.value = 0
ctx = library.WBEM_ConnectServer_send(
self.ctx, # com_ctx
None, # parent_ctx
hostname, # server
namespace, # namespace
None, # username
None, # password
None, # locale
flags.value, # flags
None, # authority
None) # wbem_ctx
yield deferred(ctx); driver.next()
result = library.WBEM_ConnectServer_recv(ctx, None, byref(self.pWS))
WERR_CHECK(result, self._deviceId, "Connect")
driver.finish(None)
return drive(inner)
def fetchSome(self, timeoutMs=wbemTimeoutInfinite, chunkSize=10):
assert self.pEnum
def inner(driver):
count = uint32_t()
objs = (POINTER(WbemClassObject)*chunkSize)()
ctx = library.IEnumWbemClassObject_SmartNext_send(
self.pEnum, None, timeoutMs, chunkSize
)
yield deferred(ctx); driver.next()
result = library.IEnumWbemClassObject_SmartNext_recv(
ctx, self.ctx, objs, byref(count)
)
WERR_CHECK(result, self._deviceId, "Retrieve result data.")
result = []
for i in range(count.value):
result.append(wbemInstanceToPython(objs[i]))
talloc_free(objs[i])
driver.finish(result)
return drive(inner)
def connect(self,
eventContext,
deviceId,
hostname,
creds,
namespace="root\\cimv2"):
self._deviceId = deviceId
library.com_init_ctx(byref(self.ctx), eventContext)
cred = library.cli_credentials_init(self.ctx)
library.cli_credentials_set_conf(cred)
library.cli_credentials_parse_string(cred, creds, CRED_SPECIFIED)
library.dcom_client_init(self.ctx, cred)
def inner(driver):
flags = uint32_t()
flags.value = 0
ctx = library.WBEM_ConnectServer_send(
self.ctx, # com_ctx
None, # parent_ctx
hostname, # server
namespace, # namespace
None, # username
None, # password
None, # locale
flags.value, # flags
None, # authority
None) # wbem_ctx
yield deferred(ctx)
driver.next()
result = library.WBEM_ConnectServer_recv(ctx, None,
byref(self.pWS))
WERR_CHECK(result, self._deviceId, "Connect")
driver.finish(None)
return drive(inner)
def fetchSome(self, timeoutMs=wbemTimeoutInfinite, chunkSize=10):
assert self.pEnum
def inner(driver):
count = uint32_t()
objs = (POINTER(WbemClassObject) * chunkSize)()
ctx = library.IEnumWbemClassObject_SmartNext_send(
self.pEnum, None, timeoutMs, chunkSize)
yield deferred(ctx)
driver.next()
result = library.IEnumWbemClassObject_SmartNext_recv(
ctx, self.ctx, objs, byref(count))
WERR_CHECK(result, self._deviceId, "Retrieve result data.")
result = []
for i in range(count.value):
result.append(wbemInstanceToPython(objs[i]))
talloc_free(objs[i])
driver.finish(result)
return drive(inner)
"WQL",
query,
WBEM_FLAG_RETURN_IMMEDIATELY | WBEM_FLAG_FORWARD_ONLY,
None)
yield deferred(qctx); driver.next()
pEnum = POINTER(IEnumWbemClassObject)()
result = library.IWbemServices_ExecNotificationQuery_recv(
qctx, byref(pEnum))
WERR_CHECK(result, self._deviceId, "ExecNotificationQuery")
driver.finish(QueryResult(self._deviceId, self.ctx, pEnum))
except Exception, ex:
if pEnum:
c = library.IUnknown_Release_send_f(pEnum, self.ctx)
yield deferred(c); driver.next()
result = library.IUnknown_Release_recv(self.ctx)
WERR_CHECK(result, self._deviceId, "Release")
log.exception(ex)
raise
return drive(inner)
def __del__(self):
self.close()
def close(self):
if self.ctx:
talloc_free(self.ctx)
self.ctx = None
class Query(object):
def __init__(self):
self.ctx = POINTER(com_context)()
self.pWS = POINTER(IWbemServices)()
self._deviceId = None
def connect(self,
eventContext,
deviceId,
hostname,
creds,
namespace="root\\cimv2"):
self._deviceId = deviceId
library.com_init_ctx(byref(self.ctx), eventContext)
cred = library.cli_credentials_init(self.ctx)
library.cli_credentials_set_conf(cred)
library.cli_credentials_parse_string(cred, creds, CRED_SPECIFIED)
library.dcom_client_init(self.ctx, cred)
def inner(driver):
flags = uint32_t()
flags.value = 0
ctx = library.WBEM_ConnectServer_send(
self.ctx, # com_ctx
None, # parent_ctx
hostname, # server
namespace, # namespace
None, # username
None, # password
None, # locale
flags.value, # flags
None, # authority
None) # wbem_ctx
yield deferred(ctx)
driver.next()
result = library.WBEM_ConnectServer_recv(ctx, None,
byref(self.pWS))
WERR_CHECK(result, self._deviceId, "Connect")
driver.finish(None)
return drive(inner)
def query(self, query):
assert self.pWS
def inner(driver):
qctx = None
try:
qctx = library.IWbemServices_ExecQuery_send_f(
self.pWS, self.ctx, "WQL", query,
WBEM_FLAG_RETURN_IMMEDIATELY | WBEM_FLAG_ENSURE_LOCATABLE,
None)
yield deferred(qctx)
driver.next()
pEnum = POINTER(IEnumWbemClassObject)()
result = library.IWbemServices_ExecQuery_recv(
qctx, byref(pEnum))
WERR_CHECK(result, self._deviceId, "ExecQuery")
ctx = library.IEnumWbemClassObject_Reset_send_f(
pEnum, self.ctx)
yield deferred(ctx)
driver.next()
result = library.IEnumWbemClassObject_Reset_recv(ctx)
WERR_CHECK(result, self._deviceId,
"Reset result of WMI query.")
driver.finish(QueryResult(self._deviceId, self.ctx, pEnum))
except Exception, ex:
log.exception(ex)
raise
return drive(inner)
self.pWS, self.ctx, "WQL", query,
WBEM_FLAG_RETURN_IMMEDIATELY | WBEM_FLAG_FORWARD_ONLY,
None)
yield deferred(qctx)
driver.next()
pEnum = POINTER(IEnumWbemClassObject)()
result = library.IWbemServices_ExecNotificationQuery_recv(
qctx, byref(pEnum))
WERR_CHECK(result, self._deviceId, "ExecNotificationQuery")
driver.finish(QueryResult(self._deviceId, self.ctx, pEnum))
except Exception, ex:
if pEnum:
c = library.IUnknown_Release_send_f(pEnum, self.ctx)
yield deferred(c)
driver.next()
result = library.IUnknown_Release_recv(self.ctx)
WERR_CHECK(result, self._deviceId, "Release")
log.exception(ex)
raise
return drive(inner)
def __del__(self):
self.close()
def close(self):
if self.ctx:
talloc_free(self.ctx)
self.ctx = None
